Miniature stiffness tunable device with magnetorheological fluid

H. Ishizuka; T. Nakadegawa; Norihisa Miki

doi:10.1109/ICEP-IAAC.2015.7111046

Miniature stiffness tunable device with magnetorheological fluid

H. Ishizuka, T. Nakadegawa, Norihisa Miki

Department of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

This study demonstrates new liquid encapsulation method based on adhesive force between liquid and solid. Various liquid encapsulation methods have been proposed. However, these method have limitations. For example, the structure that encapsulates liquid in palyrene membrane are too fragile and not suitable for actuators. Bonding methods can applicable to only two dimensional structures. We developed a liquid encapsulation method with only two process in miniature structure. We utilized magnetorheological (MR) fluid that reacted to an external magnetic field as encapsulated liquid. We investigated the relation between the size and various fabrication factors. We also investigated the relation between the applied magnetic field and the resulting resistive force for application. The results indicated that resistive force increased from 6.2 mN to 9 mN by applying the magnetic field of 400 mT. The structure can be applicable to tactile display that present spatial distribution of stiffness.

Original language	English
Title of host publication	ICEP-IAAC 2015 - 2015 International Conference on Electronic Packaging and iMAPS All Asia Conference
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	409-412
Number of pages	4
ISBN (Print)	9784904090138
DOIs	https://doi.org/10.1109/ICEP-IAAC.2015.7111046
Publication status	Published - 2015 May 20
Event	2015 International Conference on Electronic Packaging and iMAPS All Asia Conference, ICEP-IAAC 2015 - Kyoto, Japan Duration: 2015 Apr 14 → 2015 Apr 17

Other

Other	2015 International Conference on Electronic Packaging and iMAPS All Asia Conference, ICEP-IAAC 2015
Country/Territory	Japan
City	Kyoto
Period	15/4/14 → 15/4/17

Keywords

Liquid encapsulation method
MEMS
MR fluid
Smart fluid
Tactile display

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/ICEP-IAAC.2015.7111046

Cite this

Miniature stiffness tunable device with magnetorheological fluid. / Ishizuka, H.; Nakadegawa, T.; Miki, Norihisa.

ICEP-IAAC 2015 - 2015 International Conference on Electronic Packaging and iMAPS All Asia Conference. Institute of Electrical and Electronics Engineers Inc., 2015. p. 409-412 7111046.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ishizuka, H, Nakadegawa, T & Miki, N 2015, Miniature stiffness tunable device with magnetorheological fluid. in ICEP-IAAC 2015 - 2015 International Conference on Electronic Packaging and iMAPS All Asia Conference., 7111046, Institute of Electrical and Electronics Engineers Inc., pp. 409-412, 2015 International Conference on Electronic Packaging and iMAPS All Asia Conference, ICEP-IAAC 2015, Kyoto, Japan, 15/4/14. https://doi.org/10.1109/ICEP-IAAC.2015.7111046

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abstract = "This study demonstrates new liquid encapsulation method based on adhesive force between liquid and solid. Various liquid encapsulation methods have been proposed. However, these method have limitations. For example, the structure that encapsulates liquid in palyrene membrane are too fragile and not suitable for actuators. Bonding methods can applicable to only two dimensional structures. We developed a liquid encapsulation method with only two process in miniature structure. We utilized magnetorheological (MR) fluid that reacted to an external magnetic field as encapsulated liquid. We investigated the relation between the size and various fabrication factors. We also investigated the relation between the applied magnetic field and the resulting resistive force for application. The results indicated that resistive force increased from 6.2 mN to 9 mN by applying the magnetic field of 400 mT. The structure can be applicable to tactile display that present spatial distribution of stiffness.",

keywords = "Liquid encapsulation method, MEMS, MR fluid, Smart fluid, Tactile display",

author = "H. Ishizuka and T. Nakadegawa and Norihisa Miki",

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AU - Ishizuka, H.

AU - Nakadegawa, T.

AU - Miki, Norihisa

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N2 - This study demonstrates new liquid encapsulation method based on adhesive force between liquid and solid. Various liquid encapsulation methods have been proposed. However, these method have limitations. For example, the structure that encapsulates liquid in palyrene membrane are too fragile and not suitable for actuators. Bonding methods can applicable to only two dimensional structures. We developed a liquid encapsulation method with only two process in miniature structure. We utilized magnetorheological (MR) fluid that reacted to an external magnetic field as encapsulated liquid. We investigated the relation between the size and various fabrication factors. We also investigated the relation between the applied magnetic field and the resulting resistive force for application. The results indicated that resistive force increased from 6.2 mN to 9 mN by applying the magnetic field of 400 mT. The structure can be applicable to tactile display that present spatial distribution of stiffness.

AB - This study demonstrates new liquid encapsulation method based on adhesive force between liquid and solid. Various liquid encapsulation methods have been proposed. However, these method have limitations. For example, the structure that encapsulates liquid in palyrene membrane are too fragile and not suitable for actuators. Bonding methods can applicable to only two dimensional structures. We developed a liquid encapsulation method with only two process in miniature structure. We utilized magnetorheological (MR) fluid that reacted to an external magnetic field as encapsulated liquid. We investigated the relation between the size and various fabrication factors. We also investigated the relation between the applied magnetic field and the resulting resistive force for application. The results indicated that resistive force increased from 6.2 mN to 9 mN by applying the magnetic field of 400 mT. The structure can be applicable to tactile display that present spatial distribution of stiffness.

KW - Liquid encapsulation method

KW - MEMS

KW - MR fluid

KW - Smart fluid

KW - Tactile display

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Y2 - 14 April 2015 through 17 April 2015

ER -

Miniature stiffness tunable device with magnetorheological fluid

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Keywords

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